Bài tập 1: Cho dạng đúng của động từ trong ngoặc để hoàn thành câu.
1. A lot of people (be) __ were__ out of work if the factory closed down.
2. If I saw a tiger walking across the park, I (climb) ________________ the trees.
3. I (buy) ________________ those shoes if I (be) ________________ you.
4. Tell him to ring me up if you (see) ________________ him.
5. If you dont change your wet clothes, you (have) ________________ a cold.
6. If I (know) ________________his address, I would give it to you.
7. If he (work) ________________ hard today hell have a holiday tomorrow.
8. What (you / do) ________________ if you found 1000 dollars?
9. I could get a job easily if I (have) ________________ a degree.
10. Ice (turn) ________________ to water if you hear it.
@ Loại 1: If+ HTĐ, can/ will+ V